Home / 27,989.13-38,571.86-20,017.52

Finding the Fourth Proportional to 27,989.13, 38,571.86 and 20,017.52

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Solution

The fourth proportional to 27,989.13, 38,571.86 and 20,017.52 is: 27,586.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.13 : 38,571.86 = 20,017.52 : x
  2. Step 2: Convert to fraction form
    27,989.13/38,571.86 = 20,017.52/x
  3. Step 3: Cross multiply
    27,989.13x = 38,571.86 × 20,017.52
  4. Step 4: Simplify right side
    27,989.13x = 772,112,978.99
  5. Step 5: Solve for x
    x = 772,112,978.99/27,989.13
  6. Step 6: Final answer
    x = 27,586.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.